i have to give props to gnc ultra nourishair... last 22 days comparison
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Join Date: Jun 2010
I hear that when talking vitamins to aid in hair growth, they lose effectiveness over time. How long would you say that would take? A year? judging by how long most people used it. I plan on using the GNC ultra nourishair for 2-3 years, but I don't know if it would work for me that long.